Strange glitch/bug on matchmaking

Hello folks, first off i’d like to excuse me for my bad english. I’m from germany and we played a dominion game on matchmaking and there occured a really strange glitch or bug: As the game started, every gamertag was visible through the whole map above the players. When someone from the enemies was near me, i was able to see a white bar above their characters and when i started shooting at my enemies i could see how the white bar decreased.
I recorded the game and it can be found in my filesharing on xbox live. My gamertag is sh00t1n putin 7 and the clip is called “dominion” and was on exile (13.05.13).
I would like to hear your thoughts on what happened because after that rather awkward game i started to google for that bug and couldn’t find anything. It was like a pre-alpha version of halo 4 matchmaking…

Sincerely,
SH00T1N PUTIN 7

https://www.halowaypoint.com/en-us/games/halo4/fileshare/details/afb138af-434a-4f8e-b93b-c0e7d18f1268
Here is the link to the file.
I would like to hear some thoughts about it.

The exact same thing happened to me in a BTB on settler.

In fact it got to the point in the middle of the game that no-one could die!
You would use an assault rifle, and it was like bottomless clip, the ammo never got used up; I just kept shooting an enemy and he me, we neither had any shields, yet were doing a boxing bout, and then joined by a few others into a mass punch up. Suddenly the game came back to life and you could die again. Also walk was sprint, and sprint was boost (never got a boost to see how fast that was!). You could shoot using the assault rifle like it was a DMR. One of the hogs blew up after about 4 shots of an assault rifle, lol!

this is my fileshare (its the first one)
Big Team Infinity Slayer on Settler, Sunday May 12, 2013 22:05:43

http://www.halowaypoint.com/en-us/players/firerock68/halo4/fileshare#!/?section=GameClip

https://www.halowaypoint.com/en-us/games/halo4/fileshare/details/22b01c53-6cff-4d85-9b09-332bf6cb0ede

(hopefully the above is the link to the file)

Seriously has no one else seen this?
it was well weird, didn’t happen on all games, just the odd one, I wonder if it was part of a TU, or if one of the other players was a developer with some setting turned on that effect everybody.